Texas Instruments

LP3470M5X-4.38

LP3470M5X-4.38 Description

The LP3470M5X-4.38 is a single-channel voltage supervisor IC designed by Texas Instruments. This device is part of the Power Management Integrated Circuit (PMIC) category and is housed in a compact SOT23-5 package. It is specifically engineered to monitor a single voltage rail with a threshold voltage of 4.38V. The LP3470M5X-4.38 features an open-drain or open-collector output, making it versatile for various system configurations. It operates with a reset timeout of 1ms minimum, ensuring reliable system resets. The device is surface-mountable, making it suitable for modern PCB designs. Although it is marked as obsolete, it remains a reliable choice for applications requiring a simple and effective voltage monitoring solution.

LP3470M5X-4.38 Features

• Voltage Monitoring: The LP3470M5X-4.38 is designed to monitor a single voltage rail with a precise threshold voltage of 4.38V. This feature ensures that the device can accurately detect voltage levels and trigger appropriate responses.
• Open Drain/Open Collector Output: The device offers an open-drain or open-collector output, providing flexibility in system design. This feature allows for easy integration with various types of digital logic and can be configured to meet specific application requirements.
• Reset Timeout: With a minimum reset timeout of 1ms, the LP3470M5X-4.38 ensures that the system has sufficient time to stabilize before the reset signal is released. This helps in preventing premature system restarts and ensures reliable operation.
• Surface Mount Technology: The LP3470M5X-4.38 is available in a surface-mount package, making it suitable for automated assembly processes and compact PCB designs. The SOT23-5 package is widely used in the electronics industry for its small footprint and ease of integration.
• Compliance and Compatibility: The device is REACH unaffected and RoHS3 compliant, ensuring that it meets environmental and safety standards. It is also categorized under ECCN EAR99, indicating its general availability for international trade.
• Moisture Sensitivity Level (MSL): The LP3470M5X-4.38 has an MSL of 1 (Unlimited), making it suitable for storage and handling in various environmental conditions without the need for special precautions.

LP3470M5X-4.38 Applications

The LP3470M5X-4.38 is ideal for applications requiring reliable voltage monitoring and system reset functionality. Some specific use cases include:

• Power Supply Monitoring: In power supply units, the LP3470M5X-4.38 can be used to monitor the main voltage rail and trigger a reset if the voltage drops below the threshold. This ensures that the system remains stable and prevents damage due to insufficient power.
• Embedded Systems: For embedded systems where a single voltage rail needs to be monitored, the LP3470M5X-4.38 provides a compact and efficient solution. Its small package size and surface-mount compatibility make it suitable for space-constrained designs.
• Consumer Electronics: In consumer electronics, such as smartphones and tablets, the LP3470M5X-4.38 can be used to monitor the battery voltage and trigger a system reset if the voltage falls below a safe operating level. This helps in prolonging the device's lifespan and ensuring reliable operation.
• Industrial Control Systems: In industrial applications, the LP3470M5X-4.38 can be used to monitor critical power supplies and ensure that the system remains operational within specified voltage ranges. Its robust design and compliance with industry standards make it suitable for harsh industrial environments.

Conclusion of LP3470M5X-4.38

The LP3470M5X-4.38 is a reliable and versatile voltage supervisor IC designed for applications requiring precise voltage monitoring and system reset functionality. Its compact SOT23-5 package, open-drain/open-collector output, and 1ms minimum reset timeout make it suitable for a wide range of applications, from power supply units to embedded systems and consumer electronics. Although marked as obsolete, the LP3470M5X-4.38 remains a robust choice for designers seeking a simple and effective voltage monitoring solution. Its compliance with environmental and safety standards ensures that it meets the requirements of modern electronics manufacturing.